Fluid controlled luggage handle

A fluid controlled luggage handle, comprising

• an outer tube installed at a back of the luggage;
• an inner tube which can slide freely in the outer tube;
• a main piston installed at a bottom of the inner tube;
• and
• an auxiliary piston installed in the main piston;
• wherein the auxiliary piston is coupled to, and controlled by, a button on the handle so as to slide itself up and down within the main piston;
• thereby controls the opening and closing of a valve inside the main piston at the bottom of the inner tube, which further controls the upward and downward strokes of the inner tube within the outer tube, a no-stroke luggage handle's maneuver is thus achieved.

A fluid controlled luggage handle which comprises

• a handle holder;
• a button on the handle holder;
• two outer tubes installed at a back of the luggage;
• two inner tubes which each of them can slide freely within each outer tube;
• two rigid drawing elements connected to the button and extended down into the two inner tubes;
• a main piston at a bottom of each inner tube;
• an auxiliary piston installed inside each main piston;
• a first O-ring and a second O-ring surrounding each of the main piston;
• an upper channel and a lower channel provided in each main piston;
• and
• a third and fourth O-rings encircling the auxiliary piston;
• wherein an upper portion of the auxiliary piston connects to a rigid drawing element;
• an upper portion of the rigid drawing element connects to the button on the handle, and a spring longitudinally disposed between a lower end of the auxiliary piston and a bottom end of a central pit of the main piston, which is for maintaining a position of the fourth O-ring of the auxiliary piston between a horizontal channels of the upper channel and a horizontal channel of the lower channel and thereby separating the upper and the lower channels independently so that the upper fluid tank and the lower fluid tank are not mutually connected and thus keeping the main piston staying still when the button on the handle is not manually depressed, leaving the handle at its initial immobile position;
• whereas, when the button on the handle is depressed, the rigid drawing element pushes down the auxiliary piston, which further compresses the spring disposed between a lower end of the auxiliary piston and a bottom end of a central pit of the main piston so that the fourth O-ring of the auxiliary piston lowers below the horizontal channel of the lower channel;
• thus the upper channel and the lower channel are in fluid communication, and the upper fluid tank and the lower fluid tank are therefore in fluid communication.